Public methods

onDragInitiated

Called when user intent to perform a drag and drop operation has been detected.

The following circumstances are considered to be expressing drag and drop intent:

Long press on selected item.

Click and drag in the drag region
of selected item with a pointer device.

Click and drag in drag region of un-selected item with a pointer device.

The RecyclerView item at the coordinates of the MotionEvent is not supplied as a parameter
to this method as there may be multiple items selected or no items selected (as may be
the case in pointer drive drag and drop.)